After having a peak inside my timing cover as I could not remember the last time I was in there - must have been 15 years ago, I decided to renew the seals, check the cam chain and find out why it wet sumped.
After checking all of the above, on re-commissioning I had no sparks and found one of the wires on the coil pick up plate had failed near the first zip clip but not at the soldered joint. It was found by squeezing the wire sheathing with finger and thumb until a thin section was found. Seeing as the wires are araldited to the board I just by passed the wire and the problem was solved. Whilst at this stage I took the timing mark bolt out the crankcase and aligned it all up instead of using the scale in the primary cover - what a difference just by getting it a little more accurate.
The wet sumping - the piston in the timing cover was jammed in the open position, a little heat on the casing out side and a bang on the wooden bench had it free. I polished the piston and fitted new spring. Re-furbished the oil pump to try and get it better than the pissed condition it left the factory - boy, they must have had some worn out machines in those days, fitted with new conical washer and the wet sumping seems to have gone - but time will tell. Measured with a jug under the bike for 24 hours, the few drips could have been residual oil in the cases, either way, from the quantity in the jug it should tke many weeks to have a volume of oil that would present an issue, and that's with SAE 5W-40 oil.
After checking all of the above, on re-commissioning I had no sparks and found one of the wires on the coil pick up plate had failed near the first zip clip but not at the soldered joint. It was found by squeezing the wire sheathing with finger and thumb until a thin section was found. Seeing as the wires are araldited to the board I just by passed the wire and the problem was solved. Whilst at this stage I took the timing mark bolt out the crankcase and aligned it all up instead of using the scale in the primary cover - what a difference just by getting it a little more accurate.
The wet sumping - the piston in the timing cover was jammed in the open position, a little heat on the casing out side and a bang on the wooden bench had it free. I polished the piston and fitted new spring. Re-furbished the oil pump to try and get it better than the pissed condition it left the factory - boy, they must have had some worn out machines in those days, fitted with new conical washer and the wet sumping seems to have gone - but time will tell. Measured with a jug under the bike for 24 hours, the few drips could have been residual oil in the cases, either way, from the quantity in the jug it should tke many weeks to have a volume of oil that would present an issue, and that's with SAE 5W-40 oil.
